No, it isn't a real coin. There were no quarter sovereigns issued. There had been third and quarter guineas (with totally different design), but those didn't go beyond George III, and even a quarter guinea measured 5/8 in.
Half sovereign had diameter 3/4 in (19 mm.) and weight 4 g. London mint stopped issuing the halves after 1915. In 1919 Perth Mint struck the coins but did not release for circulation (for the first time that year). I guess some jewelers were filling in the void.
Half sovereign had diameter 3/4 in (19 mm.) and weight 4 g. London mint stopped issuing the halves after 1915. In 1919 Perth Mint struck the coins but did not release for circulation (for the first time that year). I guess some jewelers were filling in the void.





















